Unit Converter
Convert between units across 17 categories — length, mass, volume, time, speed, area, energy, power, pressure, force, frequency, angle, temperature, data storage, density, fuel economy, cooking.
How to Use
- Pick a category — length, mass, temperature, etc.
- Pick From and To units. Type on either side; the other updates live.
- Shareable URL: add ?category=X&from=Y&to=Z to deep-link any pair.
17 categories, one tool
Convert between units across length, mass, volume, time, speed, area, energy, power, pressure, force, frequency, angle, temperature, data storage, density, fuel economy, and cooking. All conversions run locally in your browser.
Deep-link any pair via ?category=X&from=Y&to=Z. Conversion table on the right shows the entered value in every unit of the current category.
Popular conversions
Frequently Asked Questions
Is temperature handled correctly?
Yes — temperature uses affine conversions (°F has an offset of 32). Celsius, Fahrenheit, Kelvin, Rankine, Réaumur all supported.
L/100km is odd — higher means less efficient?
Correct — it is an inverse measure (volume per distance). The tool inverts correctly when converting between km/L or mpg and L/100km.
KB (decimal) vs KiB (binary)?
Both available. 1 KB = 1000 B. 1 KiB = 1024 B. Matters for file size vs disk capacity claims.
Common Use Cases
Quick daily converts
Kilos → pounds, miles → km, °F → °C.
Engineering
Pressure (psi/bar/kPa), power (hp/kW), torque via force × length.
Deep-link a pair
Bookmark ?category=length&from=meter&to=foot.
Last updated: